Partinfg (example attached) shows in the headline describing the hard drive CHS and WCHS data. What does WCHS stand for? I could not find this abbreviation neither on terabyteunlimited.com nor with Google.

While at partinfg, could you please explain the data and their meaning in the diffent columns of the table or give a link to a document that contains this exlplanation?

Partinfg (example attached) shows in the headline describing the hard drive
CHS and WCHS data. What does WCHS stand for? I could not find this
abbreviation neither on terabyteunlimited.com nor with Google.

While at partinfg, could you please explain the data and their meaning in
the diffent columns of the table or give a link to a document that contains
this exlplanation?

The CHS system is archaic and can't read more than 1024 cylinders. WCHS will read the correct number of cylinders. Here is an example from my SSD. Disk Management shows it as 447.13 GiB. WCHS shows 58369/255/63